Metal lath.



W. M. GOLDSMITH.

METAL LATE.

APPLICATION FILED 0GT.7,1912.

1,077,404. Patented N014, 1913.

( 351 maffaugzg',

UNITED srAiras i rrirnn'r OFFICE.

WILLIAM M. GOLDSMITH. OF CINCINNATI, OHIO.

METAL LA'LH T 0 0?] whom it may concern Be it known that I, WILLIAM M. than 8111111, a. citizen of the l nitedfitatcs ot' America. and resident of Cincinnati count of Hamilton. and State of Ohio. have in- Vented certain new and useful improv ments in hlctal liahs. of which the. toll ing is a specification.

This invention relates to metallic lath or to metallic sheeting; adapted for use as a reinforcing or supporting member for concrete. plastering, or similar materials. and has for an object t jiroduce a lath or sh eting of improved construction. which is strong, is capable of resisting deflection in both directions, and is c mparatively light.

A further object is to produce a lath or sheeting provided with flanged openinw s arranged that the lath or iceting l? more eflective in engaging ((Ilti't. c, plastering? or simi ar materials and is more rigid than similar lath or sheet ng of the some ueig'ht.

These and other objects l at a n in means; of a lath or sheeting embodying he features herein dcscril'ied, and illustrated in the drawings accmnpanyingand forming a part of this application.

In the drawings, Figure 1 is a traginental perspective view of a lath or sheeting em .bodying my invention. Fig. Q is a sectional View along the line 2-2 of Fig. 1.

The lath illustrated as an embodiment oi my invention consists of a metal sheet or blank which is Stamped, rolled or otherwise formed to provide a series of transicrsely extending, parallel corrugations or ribs 3, which form stiffening ribs and may, if desired, be dove-tailed in form. Each portion 4 of the lath or sheeting, located between adjacent ribs 3, is provided with two distinct sets of tongues or lugs and 6, which are stamped or punched from the metal of the sheet for the purpose, of increasing the grip ping or engaging qualities of the metal s eeting, and also for the purpose of stint-nine the sheeting in both directions; that is. torn gitudinally and laterally. These ton, a re formed in pairs by cutting the metal along; 5

lines, such, that when they are bent out:- wardly, at right angles to the ace of sheeting, rectangular opening are formed in the sheet. .\s illustrated, eath opening 7 flanged at its edge by f ur Longuee, two of which are relatively long and extend along the lateral edges of t e opening, and two a re short and are located at the ends of the Specification of Letters Patent.

Application filed October 7. 1912.

Patented Nov. 4, .913.

in No. 724.285.

o 'icuing'. "he short tongues are V-shapcd, are loca ed between the longer tongues. and are pretcral'ily of the same height; as the tl' i' t ngues, and have little or no stit eir in ctl ect on the sheet.

The lugs ii extend transversely across the sheet or parallel to the ridges 7. and the operation oi forming them pr duces rco angular openings 7 and the, Vshaped lu s or tongues 8. which are located at the cndss oi the op nings. The lugs extend longri tudinally of the, sheet, or at right angles to the ribs 3, and the operation of forming them results in the formation of rectangular openings 9 and V-shaped lugs or tongues 8. .\s illustrated, all of the lugs 6. S and 8' project, the same amount beyond the lace oi tho sheet. on which they are formed, but the ugs t are shorter than the lugs 3 and are arranged in a piurulity of parallel rows, which extend at right angles to the rihs 3, or at. right angles to the direction of the, hers 5. Ea h pair of lugs G of one row located in staggered relation with reference to the pairs of lugs ti of adjacent rows In other Words. each pair of lugs 6 of one row is losated midway between the adjacent pairs of hugs of each adjacent row. The rows of lugs 6 are so spaced, longitudinally of the sheet, that the lugs 6, of one row, overlap the lugs 6 of the adjacent rows; that is. the. lugs 6 of one row project, longitudinally of the sheet, beyond the transversely extending line joining the adjacent ends of the li'lgs of adjacent rows; The lugs are also arranged in a plurality of rows, which extend par allel to the ribs 3, or in a direction at right angles to the direction of the lugs 6. Each pair of lugs 5 is so positioned in its row, that it 18 located midway between adjacent pairs f lugs 5 in adjacent rows, or, in other words, he lugs 5 like the lugs G are located in staggered relation across the sheet. The longitudinal rows of lugs 5 are also so spaced end located that the. lugs of one row overlap the lugs of adjacent rows. or extend b yond the longitudinally extending line thr iiugh the adjacent ends of the i. of adjacent I'O\\' '-j. in ddit ion to this e: pair of lugs 5. except. those located along the edges of the. sheet, located betvvcentuwti transverse rows of lugs (3, and lik wise. each pair of lugs 3, except those located adjacent to the ribs 3. is located hetneen hingitudinally extending rows of lugs With this arrangement, the tmnsv rse stitlening effect of the lugslocated in one longitudinal row, overlaps the transverse stiffening efl'eet of the lugs 5 located in adjacent longitudinally extending rows, \\ith the result that all portions of the sheet are stittened transversely by the emnbined etlect i of the ditlerstitl ening the sheet ation of the lugs 5 of tho ditlerent transverse rows. By locating the groups of lugs 5 and 6 in staggered relation, it possible to spare the longitudinal and transverse rows closer together, and tl'ieret'ore provide more of the lugs 5 and 6 on each sheet or lath. All of the lugs 5 and 6 preferably project on the same side of the sheet from which they are formed, and, as illustrated, they are located on the side on which the ribs 3 are embossed.

The lugs surrounding eaeh opening cooperate with the concrete, plastering, or similar material, to hold it in place with relation to the sheet, and the concrete, plastering, or similar material, also protrudes through the o]' enings T and '9 and forms keys or lugs, which, after the concrete or plastering is set, cooperates with the lugs in holding the concrete or plastering in place. It will be apparent that the lock between the plastering and the lath is rendered more effective by providing the two sets of lugs 5 and (5, and by positioning the lugs of each sea at right angles to the lugs of the other set. This is easily demonstrated, when the lath is employed in a vertical position, with the ribs 3 extending vertically. Under such The lugs t3 arcomrenditions, each group of lugs G is ahsolutely etl'eetive in preventing the plastering troin slipping down along the lath. and, nhen the la h is turned at right: angles to this position. so that the ribs 3 are located in a horizontal direction, the lugs 5 are equally etieetive in holdin the plastering in place. The lugs 3 and (9 also cooperate with each other in holding the pla tering in place. when the lath is turned at an angle, so that; the ribs 3 are inclined from the vertical. The cool'ieratien between the two sets is equally c'tl'e tive, no matter which way the sheet is inolined.

in aeeordance with the United States pati- ('Ylt statutes, 1 have described and illustrated the preferred embodiment of my invention, but I desire it to be understood that various changes, modifications and substitutions may be made in the details of eonstriu'tion, without departing from the spirit. and scope of my invention as set forth in the appended claim.

\Vhat I claim is:

A sheet metal lath having rows of trans verse openings in staggered relation, and rows of longitudinal openings in staggered relation, the transverse being longer than the longitudinal openings, and outwardly extending lugs along each side of each opening, each transverse opening and its transverse lugs crossing a straight line joining the ends of adjacent transverse openings, whereby said lugs stifien the shee along said lines.

In testimony whereof, I have hereunto subscribed my name this 4th day of October,

\VILLTAM M. GOLDSMITH. Witnesses \V. THORNTON BoonRT, E. W. MCCALLISTER. 

